t track aluminium extrusion.Which aspects should be considered when selecting the zinc aluminum alloy die-casting grade

　　1. Force state

　　The main consideration is the working conditions under which die castings are used, such as tension, compression, vibration, impact, and other load conditions.

　　2. Work environment

　　Mainly considering the temperature and sealing requirements of die castings during use, and whether the medium in contact with the lock, such as humid atmosphere, seawater, acid, alkali, salt, etc., has corrosion resistance

　　3. Production conditions

　　Consider whether the equipment, process settings, and materials in die-casting production match

　　4. Economy

　　Conduct cost accounting to minimize costs as much as possible

　　In practical use, it is difficult to provide specific principles for the selection of alloys. In many cases, it is determined by factors such as production methods, equipment conditions, practical experience, and the source of alloys. When choosing only based on performance, the principles to consider are as follows:

　　1. For zinc alloys, there is not much difference in usage and process between centralized grades

　　2. There are many grades of aluminum alloy, such as YL102 aluminum alloy, which has good airtightness, poor machinability, and severe surface patterns of castings. The cutting performance of YL104 is improved, and these two grades are usually interchangeable, with YL102 as the main grade.

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